BACKGROUND: Heterotopic pregnancy is defined as the simultaneous presence of 2 or more pregnancies at different implantation sites, most commonly one intrauterine and one ectopic. Triplet heterotopic pregnancy refers to the presence of specifically 3 concurrent gestations with at least 1 being abnormally implanted. Heterotopic pregnancy is a potentially life-threatening condition that requires thorough diagnostic workup and prompt intervention.

CONCLUSION: Although rare, heterotopic pregnancy of 2 or more gestations must be kept in mind when managing patients undergoing treatment with ART. Careful examination of bilateral adnexa and consideration of uterine sampling at the time of surgery for ectopic pregnancy is advisable, even for patients with few or no risk factors.